Algae-based artificial tree to help check air pollution in Guntur

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An ‘Algae Tree’ installed at Gandhi Park in Guntur. A single ‘Algae Tree’ matches the carbon absorption capacity of roughly 20 to 25 mature trees. | Photo Credit: T. Vijaya Kumar

In a move to combat air pollution and elevate oxygen levels in urban areas, the Guntur Municipal Corporation (GMC) has unveiled the first ‘Algae Tree’ at Gandhi Park. It is the first-of-its-kind initiative in Andhra Pradesh.

Unlike conventional flora, the ‘Algae Tree’ is a specialised, closed-loop, decentralised carbon-capture system powered by solar energy.

GMC Commissioner K. Mayur Ashok told The Hindu that this ecological installation marks a milestone in the city's sustainable development initiatives.

Developed by Mushroom World Umbrella Limited, the 4.5-metre-tall structure houses a 600-litre transparent chamber filled with high-efficiency microalgae strains. The system draws in surrounding polluted air, absorbs carbon dioxide, and releases oxygen through natural photosynthesis.

Equipped with advanced features such as solar panels, an aeration system, LED-assisted illumination, and IoT- enabled sensors monitoring pH, temperature, and airflow, the unit operates efficiently within a compact 1.5 metre footprint.

According to technical specifications provided by the GMC, a single ‘Algae Tree’ matches the carbon absorption capacity of roughly 20 to 25 mature trees, significantly reducing particulate matter and purifying the air within a 15 metre radius.

The pilot project was implemented as part of the ‘Nava Guntur’ initiative through Corporate Social Responsibility (CSR) funding provided by Lalitha Hospitals at an expenditure of approximately ₹5 lakh.

The Municipal Commissioner emphasised that while undertaking plantation drives remains a core priority in Guntur, these technological installations serve as a vital supplementary tool for densely populated urban zones, busy junctions, and public spaces where space constraints prevent conventional greening.

Beyond environmental mitigation, placing these smart units in parks and educational institutions aims to foster climate awareness among the citizens.

The GMC plans to closely monitor the pilot performance metrics, including carbon capture and oxygen generation rates, before expanding similar eco-friendly installations to other congested commercial hubs across the city.

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